PoliFi：用于WiFi的通话时间策略实施
PoliFi: Airtime Policy Enforcement for WiFi
摘要：
随着WiFi越来越受欢迎，通话时间争夺成为一个日益严重的问题。缓解这种情况的一种方法是通过网络策略实施。不幸的是，WiFi缺乏用于为其使用配置策略的协议支持，并且由于通常不能确保网络范围的协调，因此强制执行策略是具有挑战性的。然而，正如我们在以前的工作中所示，接入点可以通过改变其传输机会的调度来影响连接设备的行为，这可以用于实现通话时间公平性。在这项工作中，我们表明，这种机制可以扩展到成功地执行无线网络中的通话时间使用策略。我们实现这一点作为我们以前的通话时间公平性工作的扩展，并提出PoliFi，由此产生的政策执行系统。我们的评估表明，PoliFi可以表达一系列有用的政策。这些包括特定设备的优先级;平衡不同逻辑网络或网络切片之间共享的设备组;以及限制设备组实现访客网络或其他低优先级服务。我们还展示了如何使用这些来提高现实世界的DASH视频流应用程序的性能。
英文摘要：
As WiFi grows ever more popular, airtime contention becomes an increasing problem. One way to alleviate this is through network policy enforcement. Unfortunately, WiFi lacks protocol support for configuring policies for its usage, and since network-wide coordination cannot generally be ensured, enforcing policy is challenging. However, as we have shown in previous work, an access point can influence the behaviour of connected devices by changing its scheduling of transmission opportunities, which can be used to achieve airtime fairness. In this work, we show that this mechanism can be extended to successfully enforce airtime usage policies in WiFi networks. We implement this as an extension our previous airtime fairness work, and present PoliFi, the resulting policy enforcement system. Our evaluation shows that PoliFi makes it possible to express a range of useful policies. These include prioritisation of specific devices; balancing groups of devices for sharing between different logical networks or network slices; and limiting groups of devices to implement guest networks or other low-priority services. We also show how these can be used to improve the performance of a real-world DASH video streaming application.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
